Codes

Enter these codes in-game to perform the corresponding attack.Freeze Attack - Freezes closest opponentRear Attack - Fires selected weapon backwardsFlak Attack - Intercepts and destroys any incoming missile and will knock back enemies that are in close player proximityNapalm Attack - Adds a napalm projectile to any weapon fired (does not work with specials)

Limitless weapons

Weapon Power-up

You can only enter the code while your playing in story mode. There is a glitch that for some reason this doesn't always work. If it won't work, you have to make another guy and a new story and try it again. It took me 12 times until I finally got it.

Glitches

Playing multiplayer with one game

If you want to play Twisted Metal: Head On with other PSP players around you but only have one copy of Twisted Metal, here's how you can do it:

1.Load up Twisted Metal on PSP number 1.2.Create a game on Ad Hoc mode and start the game.3.After the game loads, take out disk.4.Put game in another PSP and load up game and join the multiplayer game that's been created and Join in and load up the game.

Now you both will be able to play the game in multiplayer mode. This trick can work for more than two players but the max number of players possible is 6.

Easter Eggs

Killing The Big Blue Stadium Music

During story mode, go up to the stage where the band is performing and blow them up ( The napom beside them works perfectly ). The moment they are killed, the song will stop playing and will be replaced with a different, lyricless song.

Secrets

Destroying the Eiffel tower.

In the Paris level, use the teleporter that leads to the top of the eiffel tower, than lead a remote bomb near one of the beams at the top, jump off, and use it! This will destroy the tower and allow access to some buildings and weapons!

Destroying the Tokyo Tower and entering the dojo

In the Tokyo Streets level, goto the big red Tokyo Tower. Use a remote control bomb on the side of the tower. It'll blow up the tower. Blowing up the tower will leave a bridge, connecting to the dojo (behind the teleporter on ground level). At the dojo is health and other weapons.

Mini game in Greece

Get onto the large ship and you'll find a path that leads to the bottom of the ship, go either dirextion but don't go on the lift, instead try going towards the other side of the ship and you'll see the teleporter that takes you to that levels secret mini game.

Secret mini game in Egypt

Secret mini game in L.A. Level

On the West side of the level (oposite end of the teleporter pad to sign) there's a teleporter pad in one of the buildings. Just shoot the doors and then stand on the pad to unlock the Solom mini game.